Developmental discount Learning Materials Large Parquetry Design Set and Geometric Pattern Cards 1960s

Developmental Learning Materials Large Wood Parquetry Design Set and Parquetry Pattern Cards 1960s
Rare find
Boxes show wear
On the back of all of discount the geometric cards there is writing.
One card has writing on front and back
#1 card miss from set of 22 cards
Ther are small marks on 3 cards

*Look at photos

Cards measure 11.5" x 8.75"
Blocks set measure 9.5" x 9.5"

Price reflex flaws